A synonym for large (sometimes excessively large) breasts. A clever code word when in the presence of ignorant females--by switching the "b" of "big" and the "t" of "titties," one can now publicly state that a given female (or male for that matter) has Tigo Bitties (Big ol' Titties).

Ja Rule: Damn, I'm shorter than my car door--hey, miss, could you perchance take a minute out of your day to open this door?
Miss (well endowed): Why sure, little man.
Ja: Thanks, and by the way you have Tigo Bitties.